Chain saw



FIG. 1 is a right side perspective view taken from the rear and above of a chain saw showing a first embodiment of our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a plan view thereof;

FIG. 7 is a botton elevational view thereof;

FIG. 8 is a right side perspective view taken from the rear and above showing the brake lever in a forward position thereof;

FIG. 9 is a right side perspective view of a second embodiment taken from the rear and above thereof;

FIG. 10 is a front elevational view of a second embodiment thereof;

FIG. 11 is a right side elevational view of a second embodiment thereof;

FIG. 12 is a left side elevational view of a second embodiment thereof;

FIG. 13 is a rear elevational view of a second embodiment thereof;

FIG. 14 is a plan view of a second embodiment thereof; and,

FIG. 15 is a bottom elevational view of a second embodiment thereof. 

The ornamental design for a chain saw, as shown and described. 